Nut forward and reverse detection device

Abstract

The utility model provides a nut forward and reverse detection device which comprises a rack, and a feeding mechanism, a detection station and a detection mechanism are installed on the rack. The feeding mechanism is used for feeding nuts to a detection station; the detection mechanism comprises a support, a lifter, a pressure head and a pressure sensor, the support is fixedly installed on the rack, the lifter is installed on the support, the lifting output end of the lifter is connected with the pressure head, the pressure head is movably arranged above the detection station, and the pressure sensor is connected with the lifting output end of the lifter. The pressing head is of a big-end-up conical structure and can be inserted into an inner hole of the nut, and the pressure sensor is arranged on the lifter and used for detecting the pressure of the pressing head on the nut. The device can replace manual operation, and nut orientation efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation devices, in particular to a nut forward and reverse detection device. Background Art

[0002] Nuts are parts that tightly connect mechanical equipment. Only nuts and bolts of the same specifications can be connected together through the inner threads. The precision requirements of the inner threads of nuts are relatively high. If the inner threads are not processed in place, they will not be able to connect with the screws correctly. The existing methods of detecting the inner threads of nuts mostly rely on manual work. By manually screwing a go / no-go gauge into the threaded hole of the nut to detect whether the inner threads of the nut are processed in place, it is not only time-consuming and labor-intensive, but also inefficient and cannot quickly detect and screen large quantities of nuts. Figure 1 The nut 10 shown has an inner diameter at both ends of the inner hole 101 of the nut 10 of different sizes. The inner hole 101 needs to be set in a predetermined direction with the large end facing upward and the small end facing downward, that is, the internal thread detection of the nut can be carried out only after orientation. The traditional manual orientation of the nut is inefficient and has a high orientation error rate, resulting in a decrease in subsequent detection efficiency. Utility Model Content

[0003] The technical problem to be solved by the present invention is that the traditional manual orientation of nuts has low efficiency and high orientation error rate. In order to overcome the above defects of the prior art, the present invention provides a nut forward and reverse detection device.

[0004] The utility model provides a nut forward and reverse detection device, comprising a frame, on which a feeding mechanism, a detection station and a detection mechanism are installed; the feeding mechanism is used to feed the nuts to the detection station; the detection mechanism comprises a bracket, a lifter, a pressure head and a pressure sensor, the bracket is fixedly mounted on the frame, the lifter is mounted on the bracket, the lifting output end of the lifter is connected to the pressure head, the pressure head is movably arranged above the detection station, the pressure head has a conical structure with a larger upper portion and a smaller lower portion and can be inserted into the inner hole of the nut, and the pressure sensor is arranged on the lifter and is used to detect the pressure of the pressure head on the nut.

[0005] Compared with the existing technology, the nut forward and reverse detection device disclosed in the present application has the following advantages: by setting a loading mechanism, the nuts are loaded to the detection station; through the detection mechanism, the lifter drives the pressure head to squeeze into the inner hole of the nut; the pressure sensor detects the pressure of the pressure head on the nut, and the forward and reverse direction of the nut is judged according to the different pressures, thereby replacing manual operation and improving the efficiency and quality of nut orientation.

[0006] In a possible embodiment, the feeding mechanism is a pulley transport mechanism, which is used to transport the nuts horizontally, and the inspection station is provided on a transport belt of the pulley transport mechanism.

[0007] Compared with the existing technology, the above technical solution can improve the reliability of material loading.

[0008] In a possible embodiment, it also includes a pushing mechanism, which includes a first fixed frame, a pushing cylinder and a pushing block. The first fixed frame is fixedly mounted on the frame, the pushing cylinder is mounted on the first fixed frame, the pushing end of the pushing cylinder is connected to the pushing block, and the pushing block is movably arranged toward the detection station to push unqualified nuts from the transport belt.

[0009] Compared with the existing technology, the above technical solution can realize the screening of nuts, which is beneficial to the subsequent detection of nuts.

[0010] In a possible embodiment, the pushing mechanism also includes two groups of protective parts, the pushing cylinder is located between the two groups of protective parts, the protective part includes a second fixed frame, a cylinder and a guard plate, the second fixed frame is fixedly mounted on the frame, the cylinder is mounted on the second fixed frame, the telescopic end of the cylinder is connected to the guard plate, the moving direction of the guard plate is set parallel to the moving direction of the push block, and when the two guard plates move out, the nut on the detection station is located between the two guard plates.

[0011] Compared with the existing technology, the above technical solution can avoid multiple nuts at the detection station and achieve directional detection reliability.

[0012] In a possible implementation, the detection mechanism further includes a position sensor mounted on the frame, and the position sensor is used to detect whether the nut is located directly below the pressure head.

[0013] Compared with the existing technology, the above technical solution can determine whether the nut has moved into place, thereby improving detection reliability.

[0014] In a possible implementation manner, a support plate for supporting nuts is installed on the frame, and the support plate is located below the transport belt.

[0015] Compared with the existing technology, the above technical solution can provide support for the nut and improve the detection stability of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure in which the nut is set in a predetermined direction;

[0017] Figure 2 It is an overall schematic diagram of the utility model;

[0018] Figure 3 It is a partial schematic diagram of the utility model;

[0019] Figure 4It is a cross-sectional view of the utility model;

[0020] Description of reference numerals:

[0021] 1. Pulley transport mechanism; 11. Transport belt; 2. Inspection station; 3. Inspection mechanism; 31. Bracket; 32. Lifter; 33. Press head; 4. Pushing mechanism; 41. First fixed frame; 42. Push cylinder; 43. Push block; 5. Protective part; 51. Second fixed frame; 52. Cylinder; 53. Guard plate; 6. Position sensor; 7. Support plate; 10. Nut; 101. Inner hole. DETAILED DESCRIPTION

[0022] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0023] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0024] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] See also Figures 1 to 4, the embodiment of the present application discloses a nut forward and reverse detection device, including a frame, on which a feeding mechanism, a detection station 2 and a detection mechanism 3 are installed; the feeding mechanism is used to feed the nut 10 to the detection station 2; the detection mechanism 3 includes a bracket 31, a lifter 32, a pressure head 33 and a pressure sensor, the bracket 31 is fixedly installed on the frame, the lifter 32 is installed on the bracket 31, the lifting output end of the lifter 32 is connected to the pressure head 33, the pressure head 33 is movably arranged above the detection station 2, the pressure head 33 has a conical structure with a larger upper part and a smaller lower part and can be inserted into the inner hole 101 of the nut 10, and the pressure sensor is arranged on the lifter 32 and is used to detect the pressure of the pressure head 33 on the nut 10.

[0027] As can be seen from the above, by setting up a loading mechanism, the nut 10 is loaded into the inspection station 2. Through the inspection mechanism 3, the lifter 32 drives the pressure head 33 to squeeze into the inner hole 101 of the nut 10. The pressure sensor detects the pressure of the pressure head 33 on the nut 10, and determines the positive and negative direction of the nut 10 according to the different pressures, thereby replacing manual operation and improving the orientation efficiency and quality of the nut 10.

[0028] In this embodiment, the loading mechanism is a pulley transport mechanism 1, which is used to transport the nut 10 horizontally. The inspection station 2 is arranged on the transport belt 11 of the pulley transport mechanism 1, thereby improving the reliability of loading.

[0029] In this embodiment, the device also includes a pushing mechanism 4, which includes a first fixed frame 41, a pushing cylinder 42 and a pushing block 43. The first fixed frame 41 is fixedly mounted on the frame, and the pushing cylinder 42 is mounted on the first fixed frame 41. The pushing end of the pushing cylinder 42 is connected to the pushing block 43, and the pushing block 43 is movably arranged toward the inspection station 2 to push unqualified nuts 10 from the transport belt 11, thereby enabling the screening of the nuts 10 to facilitate subsequent inspection of the nuts 10.

[0030] In this embodiment, the pushing mechanism 4 also includes two groups of protective parts 5, and the pushing cylinder 42 is located between the two groups of protective parts 5. The protective part 5 includes a second fixed frame 51, a cylinder 52 and a guard plate 53. The second fixed frame 51 is fixedly installed on the frame, and the cylinder 52 is installed on the second fixed frame 51. The telescopic end of the cylinder 52 is connected to the guard plate 53. The moving direction of the guard plate 53 is set parallel to the moving direction of the push block 43. When the two guard plates 53 move out, the nut 10 on the detection station 2 is located between the two guard plates 53, thereby avoiding multiple nuts 10 on the detection station 2 and achieving directional detection reliability.

[0031] In this embodiment, the detection mechanism 3 also includes a position sensor 6 installed on the frame, and the position sensor 6 is used to detect whether the nut 10 is located directly below the pressure head 33, thereby determining whether the nut 10 has moved into place, thereby improving detection reliability.

[0032] In this embodiment, a support plate 7 for supporting the nut 10 is installed on the frame. The support plate 7 is located below the transport belt 11, thereby providing support for the nut 10 and improving the detection stability of the nut 10.

[0033] The process of forward and reverse detection of nuts 10: multiple nuts 10 are placed on the transport belt 11 of the pulley transport mechanism 1, and the transport belt 11 drives the nuts 10 to move toward the detection station 2. When the position sensor 6 detects that the nut 10 is at the detection station 2, the two guard plates 53 are extended under the push of the two cylinders 52, so that only one nut 10 is located between the two guard plates 53. At the same time, the lifter 32 drives the pressure head 33 to descend, so that the pressure head 33 is squeezed into the inner hole 101 of the nut 10, and the pressure is detected by the pressure sensor. The forward and reverse orientation of the nut 10 is judged according to the different pressures, that is, the nut 10 with the large end of the inner hole 101 facing up and the small end facing down is a qualified oriented nut 10, and the other unqualified nuts 10 are pushed by the push block 43 to push the unqualified nuts 10 out of the transport belt 11. The entire operation process is automated, replacing manual operation, thereby improving the efficiency and quality of the orientation of the nut 10.

[0034] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0035] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0036] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A nut forward and reverse detection device, characterized in that: The invention comprises a frame, on which a feeding mechanism, a detection station (2) and a detection mechanism (3) are installed; the feeding mechanism is used to feed a nut (10) to the detection station (2); the detection mechanism (3) comprises a bracket (31), a lifter (32), a pressure head (33) and a pressure sensor; the bracket (31) is fixedly mounted on the frame; the lifter (32) is mounted on the bracket (31); the lifting output end of the lifter (32) is connected to the pressure head (33); the pressure head (33) is movably arranged above the detection station (2); the pressure head (33) is in a conical structure with a larger upper portion and a smaller lower portion and can be inserted into the inner hole (101) of the nut (10); the pressure sensor is arranged on the lifter (32) and is used to detect the pressure of the pressure head (33) on the nut (10).

2. The nut forward and reverse detection device according to claim 1, characterized in that: The feeding mechanism is a pulley transport mechanism (1), and the pulley transport mechanism (1) is used to transport the nut (10) along a horizontal movement. The detection station (2) is arranged on a transport belt (11) of the pulley transport mechanism (1).

3. The nut forward and reverse detection device according to claim 2, characterized in that: The invention also includes a pushing mechanism (4), which includes a first fixed frame (41), a pushing cylinder (42) and a pushing block (43). The first fixed frame (41) is fixedly mounted on the frame, the pushing cylinder (42) is mounted on the first fixed frame (41), the pushing end of the pushing cylinder (42) is connected to the pushing block (43), and the pushing block (43) is movably arranged toward the inspection station (2) to push unqualified nuts (10) from the transport belt (11).

4. The nut forward and reverse detection device according to claim 3, characterized in that: The pushing mechanism (4) further comprises two groups of protective parts (5), the pushing cylinder (42) is located between the two groups of protective parts (5), the protective part (5) comprises a second fixed frame (51), a cylinder (52) and a protective plate (53), the second fixed frame (51) is fixedly mounted on the frame, the cylinder (52) is mounted on the second fixed frame (51), the telescopic end of the cylinder (52) is connected to the protective plate (53), the moving direction of the protective plate (53) is arranged parallel to the moving direction of the pushing block (43), and when the two protective plates (53) are moved and extended, the nut (10) on the detection station (2) is located between the two protective plates (53).

5. The nut forward and reverse detection device according to claim 1, characterized in that: The detection mechanism (3) further comprises a position sensor (6) mounted on the frame, and the position sensor (6) is used to detect whether the nut (10) is located directly below the pressure head (33).

6. The nut forward and reverse detection device according to claim 2, characterized in that: A support plate (7) for supporting the nut (10) is installed on the frame, and the support plate (7) is located below the transport belt (11).

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